Large ulcers are more severe, have an irregular border, and can last for five to ten weeks.
大溃疡是更为严重，有一个不规则的边界，并能在过去五至十个星期。
The cells have an irregular shape with a slightly serrated border.
细胞的形状不规则，边缘呈锯齿状。
The irregular border indicated that over a long period of time each skein of yarn had been bought and hoarded whenever a dollar or two was available.
从它不规则的边沿来判断，每一束纱线都是在她手头存够一两美元的时候才买来的，而且之间隔的时间较长。
Tiffany's Irregular Upper and Lower Border lamps are distinguished by the openwork crown edge, which is meant to represent a branch, shrubbery or tree.
蒂凡尼的不规则的上，下边界灯的特点是镂空冠的边缘，其目的是要描绘出树枝，灌木或树。
Tiffany's Irregular Upper and Lower Border lamps are distinguished by the openwork crown edge, which is meant to represent a branch, shrubbery or tree.
蒂凡尼的不规则的上，下边界灯的特点是镂空冠的边缘，其目的是要描绘出树枝，灌木或树。
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